Beveling and trimming machine



(No Model.) 3 Sheets-Sheet 1. C. N. 'SMITIL BEVELING AND TRIMMINGMAGHINE. No. 596, 129. Patented Dec. 28,1897.

(No Model.) .3 Sheets-Sheet 2.

C. N. SMITH. BEVELING AND TRIMMING MAGHINE.

No. 596,429. Patented Dec. 28,1897.

43 %w i o o o J 7 e 4 ,e ws; I JNVENTO m m 0. JV." 577721 0.

TNE Komm varim om Puomumo WASWNGTOI. n. a

(No Model.) 3 Sheets-Sheet 3, O. N. SMITH. BEVELING AND TRIMMINGMAGHINE.

Patented Dec. 28,1897

ATTUHNEY&

TNE NonRs PETERS oo wow-uma.. WASHXNGTON. u. c.

UNITED STATES PATENT OFFICE.

CHRIS N. SMITH, OF ELGIN, ILLINOIS.

BEVELING AND TRIMMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 596,429, dated December28, 1897.

Application filed March 30, 1897.

To aZZ whom it may conccrn:

Be it known that I, CHRIS N. SMITH, residing at Elgin, in the County ofKane and State of Illinois, have invented a new and Improved Bevelingand Trimming Machine,of which the following is a specification.

My invention is in the nature of an improved bevelng and trimmingmachine for the beveling and squaring of zine, copper, electro or stereotype plates; and it primarily has for its object to provide a machine,the operation of which will render the trimming and squaring of suchplates into any size desired with either a square or beveled edgewithout the use of any other machine or machines, thus saving much timeand insuring a more uniform result than is obtained by the ordinarymethods now in use. 4

My invention also has for its object to provide a machine of thischaracter ofa very simple and inexpensive Construction which can beeasily manipulated, in which reverse movement of the platen orcarrier-bed is automatically effected, and in which the several partsare so arranged as to positively, quickly, and effectively serve fortheir intended purposes.

With other objects in view, which will be hereinafter referred to, theinvention consists in a machine for the purposes stated, embodying thepeculiar combination and novel arrangement of parts, such as'will befirst described in detail and then be specifically pointed out in theappended claims, reference being had to the accompanying three sheets ofdrawings, in which- Figure 1 is a perspective view of my improvedmachine. Fig. 2 is a longitudinal section of the same, the parts beingin the position shown in Fig. 1. Fig. 3 is a partial 'side view viewedfrom the side opposite to Fig. 1. Fig., 4 is a transverse section of thesame, taken on the line 4: 4 of Fig. 2. Fig. 5 is a plan View partly insection, the bed-plate being removed. Fig. 6 is a detail View of therotary knife and the adjusting devices therefor. Fig. 7 is a detail viewof one of the reversing-dogs and Fig. 8 is a detail view illustratingthe switch devices hereinafter referred to.

In its practical Construction my invention embodies a suitablesupporting-hame 1, havgear.

Serial No. 629,97Z. (No model.)

ing at the upper end'longitudinally-extended side members 2, connectedat the ends by the cross members 3 3, whereby a casing -like portion isproduced which surrounds and protects the interior drive mechanismpresently refe'red to. Lengthwise of the members 2 and on the upper endthereof are guideways 4, upon which the sliding platen or bed 5 ismounted, and which is held to reciprocate thereon, it having a centralrack 6 on its under face, which is engaged and operated' by a gear 7 ona drive-shaft presently more particularly referred to.

7 indicates the stereo or electro plate. to be trimmed, which is held onthe bed 5 in line with the gage-plate S by the clamps 9 9, ad-

j ustably Secured to the bed, and which have their front ends held toengage the top of the plate 8, as clearly shown in Fig. 1.

10 indicates a drive-shaft disposed transversely of the machinejournaled in the side members 2 2 at a point nearly under the cuttingmechanism presently referred to. This shaft has a slight longitudinalmovement in its bearings and carries a cog-wheel 11 to engage pinion 6,which engages the rack on the under side of the reciprocating platen ortable, such wheel and rack being of such width, however, as to admit ofthe slide movement of the shaft without throwing them out of One end ofthe shaft has two pulleys 13 and 14 loosely mounted thereon and heldfrom lateral movement by any suitable means, one of such pulleys havinga straight and the other a crossed drive-belt, whereby such pulleys arerotated in reverse directions. These pulleys have friction or clutchfaces 13 14:, with which a sliding or friction clutch 15, fixedly heldin the shaft, is adapted to be alternately moved in engagement therewithby the endwise movement of the shaft, whereby to impart the alternatereciprocal movements to the plate-carrying table.

The end 10 of the shaft 10 has a grooved collar 16 working in an annularband 17, having adjusting-screws 17 which eXtend into the groove 16 ofthe collar 16, as clearly shown in Fg. 4. The band 17 is formed on theend of a horizontal arm 17, having an eye portion 17 pivotally held on avertical pintle 18, Secured in bearings 2 2 on the sides 2, as shown.The arm 17 has a sleeve IOO portion 17 which passes up through the upperbearing 18 and carries a short crank-arm 17 e extended inward into agrooved Way on the outside' of the frame portion 2. The arm 17 is alsoprovided with a short crank member 17 which connects with the inner end19 of an arm 19, pivotally connected to a shifting lever 20, fulcrumedat 20 to the main frame and having its upper end extended ontward andabove the table for convenient reach of the operator. I

- 22 indicates a pendent stop secured at one end of the table near theouter edge, and 23 indicates a similar stop at the other end, thepurpose of which will presently appear.

So far as described it will be readily seen that simple and effectivemeans are provided for imparting a reciprocating motion to theplatecarrying table and that such table receives a complete reciprocalmovement and is then automatically stopped from further movement,suchoperation being eifected as follows: When the parts are in the positionshown in Fig. 1, the operator, by moving the lever in the directionindicated, causes the switch devices to move the shaft until its clutchengages the drive-wheel, which imparts the forward rotation to suchshaft, it being obvious that such movement of the switch devices willcause the upper crank to assume a position to be in the path of the reardog 22, which dog, when the table reaches the end of its forwardmovement,engages such crank, and in consequ ence turns it and the switchdevices to move the shaft in a direction to cause its clutch to engagethe wheel, which imparts the backward movement to the table, such dogand switch devices serving, as it were, to automatically cause a reverseaction of the table.

It should be stated that when the table 'is at the position shown inFig. 1 the shifting devices are set by means of the lever 20 to throwthe dog 17 e rearward, so that when the table is moved the same willengage it and shift it in the direction in which the table is moving,thereby reversing the movement of the table, such dog 17 e remaining inthe lastnamed position until it is engaged by the adjustable dog 23,which dog is, however, so set that when the table reaches its extrememovement in the reverse direction at such point, it being positivelyheld from further movement by engagement with the supporting-frame, suchpawl 17 will be at a point midway of its throw, thereby leaving thepower-shaft Shifted to a position to free the clutch mechanism fromeither drive-wheel and thereby throw the machine out of gear, it beingunderstood that before the machine is` again started the shaft receivesits complete novement in the reverse direction to set the clutch devicein operationthrough the medium of the lever 20.

25 indicates a hood projected up from a fixed portion of the frame, inwhich is journaled the knife-carryingshaft, which has the knives 26 27secured to its front end, the Construction of which is best illustratedin Figs. 5 and 6, by reference to which it will be seen the knife 26 hasa straight edge and the knife 27 a beveled edge, the bevel-knife beingheld on the end of the spindle, while the straight square-edged knifeslides on a keyed portion of the shaft directly behind the knife 27 andwhen brought forward by the adjusting devices 28, located back of thehook, slides on such shaft and to a point between the knife 27 andthereby outs a square edge on the plate.

29 indicates a sheet-metal fnnnel which carries the chips and wastematerial into a suitable receptacle or piles the same on the floorbeneath the machine.

30 indicates a stationary knife which removes any roughness that may beleft by the trimmer-knife 27.,

In practice the machine is furnished with two interchangeable beds, onefor flat plates and the other to be used in trimming circular or curvedplates used for rotary purposes.

From the foregoing description, taken in connection with accompanyingdrawings, it is thought the complete operation and the advantages of myinvention will readily appear to those skilled in the art to which itappertains. The same comprises but a few parts, which are so arrangedthat the operator can easily manipulate the same to cause a positive andrapid operation thereof. The reversing-dog 23 is adjustably held in thetable 5, and for such purpose it is held to slide in the table 5 andprovided with a rack portion 23% with which engages a spur-wheel 23 on ashaft 23, which projects to the front of the frame and has a hand-wheel23 as clearly shown in Fig. 7.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

l. As an improvement in plate-trimming machines, the combination withthe platecarrier, of a rotary cntter mechanism, having a bevel-cutterand a square rotary cntter independently journaled on the bevel-cuttingshaft, and means for setting the latter for cutting a square edge,substantially as shown and described.

2. As an improvement in plate-trimming machines, the combination withthe reciprocating plate-carrier, of the rotary cntter mechanism,comprising a shaft, a cntter, having a bevel-knife on its outer end anda squarecutting knife, slidable on the shaft and having its teetharranged to project between the blades of the bevel-cutter and means foradjusting the said sliding cutter, for the purpose specified.

3. In a machine as described, in combination with the plate-carryingmechanism, of a cutting mechanism, consisting of two cutters, held toturn with the shaft, one of such cutters being slidable on the shaft andhaving square-edged cntter-blades adapted to operate between the bladesof the other cntter, said blades having a bevel-cutting edge asspecified.

IOO

IIO

4. In a machine as described, the combination with the Plato-carrier,and the 'otary cutting nechanism, of a stationa'y trimmerknife,snbstantially as shown and described.

5. The combination with the plate-carrying mechanism, of a outtingmechanism, consisting of two cutters held to turn with the shaft, one ofsuch cutte's being slidable on the shaft and held to turn therewith andhaving square-edged cutting-blades, the other being fixedly held on theshaft and having radial projections to receive the cutting edges of thesquare-edged cutter, substantially as shown and described.

6. The combination with the main frame,

CHRIS N. SMITH.

Witnesses:

F. J. ROBINSON, H. NORTHEY.

